Reenforcement for tubular radiators



Jan. l, 1929.

F. M. YOUNG REENFORCEMENT FOR TUBULAR RADIAToRs Filed March. 2l. 1927 Patented Jan. l, 1929.

UNITED srArEs FRED lVI. YOUNG, OF RACINE, VTSCGNSIN.

RENFORCEMENT FOR TUBULAR RADIATORS.

Application filed March 21, 192'?.

This invention relates to heat interchangers of the type usually employed as radiators for cooling internal combustion engines.

rilhe main objects of this invention are to provide improved reentorcing means for securing heat interchanger headers to their cores and more particularly to provide improved means for securing the core of an automobile radiator to its upper and lower header sheet and tank, and obviate much of the leakage resulting from the strain ot weaving, twisting, road shocks and vibration.

An illustrative embodiment of the invention is shown in the accompanying drawings, wherein,- Y

Fig. 1 is a fragmentary front elevation of an automobile radiator core and its bottom tank;

Fig. 2 is a plan view of the radiator structure and its water tubes, taken on the line 2 2 ot Fig. l and showing the reenforcing pieces for securing together the core and header;

Fig. 3 is a fragmentary end elevation ot an automobile radiator core and its bottom header, partly in section; and

Fig. 4 is a perspective detail.

It is generally known that the strain of weaving, twisting and vibration ot automo bile radiators due to road travel, Jfrequently causes the soldered joints oit radiator tubes to break and spring leaks. To minimize this trouble the presentinvention utilizes some of the tubes oi" the core, preferably those at the sides oit the radiator, as braces, securely tastened to the top and bottom tanks.

In the construction shown, 'the lower header or water tank l is apertured to receive the vertically disposed water tubes 2 which are supported by the tins 3 ot the core section. T he tubes 4; at the outer edges of the core are made shorter than the remaining tubes and are provided with plugs 6 in their ends having large anges which are soldered to the tube header sheets and thus serve as reentorcing columns. These plugs practically lill the ends of the tubes and are soldered in place, being preferably provided with a transverse sweating hole 5 for the solder to run through. When the tubes are of ilattened sectional form, as in the drawings, these plugs or reenforcing pieces may be made of metal strips by bending their middle portions upon themselves to form a shank 7 and by bending Serial No. 1??,085.

their end portions in opposite directions to :t'orm a head or iiange 8.

fr large soldering surface between the sides and ends of the shank and the interior of the tube is thus provided. Added reentorcing strength is provided by the solder running through the sweating holes. The head 8 of the reenter-Qing piece is soldered to the header plate and its comparatively large surface insures joint strength of the radiator strueture, rlfhe header plate is preferably depressed to receive the iange of the reentorcing plate, thus insuring that the solder will run around the edges of the flange and strengthen the joint.

It will thus be seen that the use ot reentorcing pieces adds considerable strength to that part ot the radiator structure most susceptible to breaking by the twisting, weaving, and vibration ot road shocks during the travel ot the automobile, and that leakage is thereby practically prevented. i

Yihile but one specific embodiment of this invention has been herein shown and described, it will be understood that numerous details of the construction shown may be altered or omitted, without departing from the spirit of this invention, as detined by the following claims.

l claim:

l. In a heat inter-changer having a header and a multi-tubular core, certain ot the tubes being non-comniunicating with the header and provided with sweat apertures near their extren'iities, means 'for securing the header and the core section together including T- shaped members whose shanks are provided with sweat apertures which register with the sweat apertures in the noncommunicating tubes when inserted and secured within such tubes as by solder and whose heads are secured to the header.

2. In a heat interchanger having a header' and core section having flattened tubes.,I means for securing the header and core section to* gether including depressed portions on the header plate and solid -shaped reentoroing plugs having shanks inserted and secured within certain ot said fiattened tubes, and flush fitting flanged heads secured within and substantially filling said depressed portions.

Signed at Racine this 14th day of March,

FRED M. YOUNG. 

